--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6607228748 dns-udp-queries-received-ipv6: 2218978694 dns-tcp-queries-received-ipv4: 438056577 dns-tcp-queries-received-ipv6: 124355846 dns-udp-responses-sent-ipv4: 6026970849 dns-udp-responses-sent-ipv6: 1842213721 dns-tcp-responses-sent-ipv4: 384032984 dns-tcp-responses-sent-ipv6: 97617360